General Functions of Battery Charge and Discharge Aging Machine

Battery charge and discharge aging machine, as its name implies, is an important equipment for battery aging process. The battery aging determines the safety, stability, service life and battery performance of the battery in the actual use process. Therefore, the battery aging machine is the core equipment of the battery quality control process. What are the general functions of a qualified battery aging cabinet? With the rapid development of new energy, what changes have taken place in the battery aging cabinet?

In the past, aging generally refers to the placement of the battery after the first charging after the completion of the liquid injection of the battery assembly. It can be either normal temperature aging or high temperature aging. The role of aging is to stabilize the nature and composition of the SEI film formed after the initial charging. The aging process has electrochemical kinetics changes, which is very helpful to the stability of the SEI and can promote the stability of the electrochemical system.

With the rapid development of battery industry, the definition of battery aging has changed quietly. Due to the increased requirements for batteries, in theory, battery aging is required in the four major steps of cell formation, capacity division, testing and aging. In PACK assembly line, battery aging cabinet is also required.

Therefore, the battery aging cabinet is no longer a specific equipment, but a set of systems. This system runs through the formation, capacity division, testing and aging detection processes in battery production, which are different from each other and related to each other. Secondly, different battery manufacturers have different battery manufacturing processes and different battery materials, which lead to different functional requirements for battery aging cabinets. Therefore, the current battery aging cabinet needs to be customized.

In the actual use process, considering the inconsistency between production capacity and market demand, some battery plants have adjusted the aging steps to improve production capacity on the premise of ensuring quality. The parameters adjusted in each production line mainly include temperature, space, time and order, which are designed according to the characteristics of the battery. The supporting tray, logistics line and size of the battery aging cabinet are also customized according to the battery size.

Therefore, the traditional battery aging machine is no longer applicable in the rapidly developing new energy vehicle industry. To keep up with the pace, customization is the best choice in terms of cost and efficiency. At present, equipment enterprises are also developing rapidly, and those ahead of the industry are moving towards customized services.